SERIES AM) SPECIES OF GENUS STREPTOMYCES 



i:;i 



Table 16 

 Streptomyces species, producing a blut pigment (Kutzner and Waksman, 1959) 



The first organism belonging to this series 

 was isolated, in 1891, by Rossi-Doria and 

 described as Streptothrix violacea. It was later 

 studied by Gasperini (1894), and by San- 

 felice (1904) as one of the three important 

 constituent groups of actinomycetes. 



Baldacci (1942) designated the scries as 

 "violaceus," which he did qo1 differentiate, 

 however, from the subgroup designated here 

 as violaceoniger. Gause et al. (1957) created 

 a new series, "roseoviolaceus" which logically 

 belongs in this series; they also included in 

 their scries "rioliici us" a variety of other 

 forms that logically belong to this scries. 

 Ettlinger ei al. ( 1958) designated as azun us 

 the light blue pigmented forms. 



This series is not known for 1 lie product ion 

 of any important antibiotics, although coeli- 

 colorin has been reported for cultures of S. 

 violaceorvher and chartreusin for S. char- 

 In usis. 



The following species may be included in 

 this series: S. violact oriibi r, S. novaecaesan ok , 

 S. cyanofuscatus, and S. litmocidini. 



Some of the melanin-producing forms, 

 such as S. violaceochromogenes, may also be 

 included in this series. Many of the forms 

 described by (iause et al. ( l ( .).">7l also belong 

 here. These include .1. coeruhscens, A. glau- 

 cescens, .1. coerukorubidus, A. tricolor, .1. 

 coeruleofuscus, A. violaceorectus, A. prani- 

 color, A. litmocidini, A. viridoviolaceus, A. 

 griseorubiginosus, A. griseoruber, A. cinna- 

 barinus, and others. 



VII. Series Fradiae 



( 'haracteristic Properties 



a. Sporophores usually straight ; occasional 

 loops and spirals. 



b. Substrate growth yellow-orange to or- 

 ange. Aerial mycelium seashell-pink, espec- 

 ially on potato agar and on glucose-aspara- 

 gine agar. 



C. Melanin-negat ive. 



This represents ;i fairly large group of or- 

 ganisms, widely distributed in nature. S. 

 fradia* was first isolated and described by 



